baber/WOPTO huggingface dataset:
Patent GB-467855-A (GB)
Title: Improvements in advertising apparatus
IPC: G09F11/12
Filed: 1936-01-25
Abstract: 467,855. Moving signs. PEARSON, C. Jan. 25, 1936, No. 2388. [Class 3 (i)] In advertising-apparatus of the type comprising two spaced endless conveyer chains running over parallel sprocket wheels in a windowed cabinet so as to move continuously in one direction, the chains having detachable and releasable holders whereby separate display sheets can be interchangeably connected to the chains for successive exposure at the window, the sheets 29 are gripped between strips 22, 23 having holes which take over bolts 20 projecting perpendicularly from some of the chain link pivots, and held thereon by screws 21. Wing- nuts or the like 24 screw on the bolts 20 to clamp the strips 22, 23 and sheets 29 together. The strips have felt linings 25. The cabinet may be provided with a letter box and with a coin-operated vending apparatus of. known kind to deliver an envelope and a form for an advertisement to be put in the letter box for subsequent display.
Patent GB-758115-A (GB)
Title: Improvements in or relating to electric timing apparatus
IPC: F42C11/06
Filed: 1954-01-26
Abstract: 758,115. Applying rupturing voltage to several fused circuits successively. MICROCELL, Ltd., TRAVERS, R. S., and LOWEN, V. R. Feb. 17, 1955 [Jan. 26, 1954], No. 2428/54. Class 38 (4). To obtain successive rupturing of fusible elements 10-19, which may be rocket detonation fuses or photographic flash bulbs, the elements are connected across a D.C. supply circuit 40, 41 through individual series resistors 21-29 (except the element 10 which is directly across the supply circuit) and are connected together by inductors 30-38. The resistors limit the current supplied thereover to the fusible elements to a non-rupturing value. Upon energization of the circuit 40, 41, element 10 immediately ruptures, due to the absence of a series resistor, current then builds up in inductor 30 and element 11 until that element ruptures, whereupon current then builds up in inductor 31 and element 12 until that element ruptures. Rupturing of elements 13-19 is brought about in succession by the same mechanism and at a rate determined by the magnitudes of inductance and resistance in the circuits. The element is preferably such as to fuse whilst the current build-up is at a fast rate.
Patent GB-1347667-A (GB)
Title: Cyclic ketone
IPC: C11B9/00
Filed: 1973-01-17
Abstract: 1347667 Cyclopentanone derivative SOC ANON DES ETABS ROURE-BERTRAND FILS & JUSTIN DU PONT 17 Jan 1973 [18 Jan 1972] 2467/73 Heading C2C [Also in Division A5] The invention comprises compounds having the Formula I: and the cis- and trans-isomers thereof. The compounds may be prepared either by (a) hydrogenation of methyl-[2-n-propyl-3-ketocyclopent-1-en-1-yl]-acetate or (b) by methylation of the acid of Formula II: The hydrogenation reaction (a) may be carried out using conventional catalysts to give a product containing a major proportion of the trans-isomer, or, in the presence, additionally, of an aluminium alcoholate when the product contains a major proportion of the cis-isomer. The acid II may be obtained by hydrolysis decarboxylation of the ester III: which is obtained by reaction of dialkyl malonate with 2-n-propyl-2-cyclopentenone.
Patent GB-469803-A (GB)
Title: Improvements in wheels provided with brakes
IPC: F16D65/827
Filed: 1936-01-27
Abstract: 469,803. Vehicle wheels and brakes. FLEURY, R. DE. Jan. 27, 1936, Nos. 2552, 2553, and 2554. Convention dates, Jan. 28, 1935, Dec. 27, 1935, and Jan. 7, 1936. [Classes 103 (i) and 144 (ii)] A wheel having a brake drum which is adjacent to or is formed partly or wholly by the wheel-rim, is provided with cooling fins on lateral extensions of either the rim or the drum so that the fins are outside the space normally occupied by the wheel. In one construction, the fins are integral with the rim against which the brake drum is directly fitted. In Fig. 2 the fins 3 are formed on an element 2 into which is fitted the brake drum 4 and which is fixed laterally against the wheel-rim 1. The periphery of the element 2 is fluted to form air circulating channels. A further construction shows an arrangement, as shown in Fig. 2, having also fins on each side of and integral with the rim. In Fig. 9 the wheel-rim 1 is formed with cooling fins on each side rendered rigid by transverse ribs 20. Inner reinforcing tongues 21 may be provided. The rim 1 is connected to the hub by a cheek 22 having teeth 23 about which the rim 1 is cast. Pyramidal projections are formed on the extension of the rim. The modification shown in Fig. 20 comprises a rim 1 and link 30 having strengthening ribs 32, 33. Air is circulated by means of a nozzle 34 and a shell 31. The brake casing 2e is provided with fins 35, 36. The casing 2e may be outwardly displaced and formed with ribs on its periphery. Further slight modifications are shown. The Specification as open to inspection under Sect. 91 comprises also a wheel, Fig. 8 (Cancelled), having a web 11 of good conducting metal provided with radiating ribs or points 3. The web 11 is rendered rigid with the hub 10 on casting by teeth 12 and carries a brake drum 4 and a tyre 15. Modifications are also shown in which cooling fins project radially towards the rim from the body of a wheel or a part secured to it so as to lie within the width of the rim. This subject-matter does not appear in the Specification as accepted.
Patent GB-667570-A (GB)
Title: Improvements in or relating to fireguards and firescreens
IPC: A47G5/04
Filed: 1949-01-31
Abstract: 667,570. Fireguards. WALMSLEY, H. Jan. 23, 1950. [Jan. 31, 1949] No. 2624/49. Class 126 A fireguard comprises a plurality of dissimilar guards which when not in use are stored in housings adjacent the fireplace and when required for use are drawn horizontally from their housings and disposed across the fireplace. In the embodiment described each of three arcuate fireguards 13,14, 15 is made in two sections, each section being closed in by a segment-shaped top arcuate housings disposed on each side of the fireplace and opening in the fireplace surround. The outermost fireguard 15 is of wire mesh and its two sections may be withdrawn from the housings and connected across the front of the fire, the top being closed in by a segment-shaped top 39 of wire mesh which when not in use is disposed in a housing beneath the hearth. A fireguard 14 of sheet metal of the same height as the mesh fireguard 15 may be similarly placed across the fire or the innermost fireguard 13 made of sheet metal, the height of which is half that of the other fireguards 14, 15 may be used. Each fireguard is provided with rollers 16. Kuides 21 are provided on the upper and lower faces of the housings in each of which the wall nearest the fire is covered with heatresisting material. Each housing is covered at the front by a cover plate provided with slots through which the fireguards 13, 14, 15 pass. A door 30 may cover the entrance to each housing when the fireguards are not in use. The two sections of each fireguard may be connected by a catch which can only be unfastened by the use of two hands.
Patent GB-584887-A (GB)
Title: Improvements in or relating to electric lampholders for double ended lamps
IPC: H01R33/08
Filed: 1945-02-02
Abstract: 584,887. Lamp caps and holders. COLLINS, A. F., and LONDON PASSENGER TRANSPORT BOARD. Feb. 2, 1945, No. 2632. [Class 38 (i)] A lampholder suitable for double-ended lamps having bayonet caps as pin contacts, comprises a sleeve 1, threaded or otherwise removably attached, to a socket 4 secured in a cylindrical casing 12. The lamp envelope 2 is supported by spring fingers 6 formed in the end of sleeve 1 or, as shown, in a sleeve 5 secured therein. A slot 11 in the boss 9 of the socket 4, accommodates the leads 8 when removing the lamp from its holder 10.
Patent GB-1075326-A (GB)
Title: Improvements relating to synthetic plastics container closure combinations
IPC: B65D39/08
Filed: 1966-01-20
Abstract: 1,075,326. Seaming non-metallic sheet material. AMERICAN FLANGE & MANUFACTURING CO. Inc. Jan. 20, 1966 [Feb. 8, 1965], No. 2679/66. Heading B5K. [Also in Division B8] A plastics bush 1 interiorly threaded to receive a container closure is provided with an external peripheral flange 3 and a cylindrical spigot 2, inserted into a correspondingly shaped hole 18 in the wall of a plastics container, an electrically conducting metal ring 25 lying between the two. A coil 24 is positioned adjacent the bush &c. and is energized by a radio - frequency electricity generator. The current induced in the conducting ring 25 heats the latter, so that the adjacent areas of the bush 1 and the container wall become welded together, Fig. 3 (not shown). As shown before welding, the conducting ring 25 lies on a frustoconical surface 21 around the hole in the container, and adjacent a ring-shaped projection 12 between the bush flange 3 and spigot 2. In a modification, Fig. 4 (not shown), before welding the conducting ring (25) lies on a ring-shaped step (32, 33) in the container wall around the hole, and the ring-shaped projection 12, Fig. 2, around the bush 1 is omitted.
Patent GB-714680-A (GB)
Title: Method of phase contrast observation
IPC: G02B21/14
Filed: 1951-02-02
Abstract: 714,680. Phase contrast microscopes. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. Feb. 2, 1951 [Feb. 3, 1950; May 30, 1950; June 8, 1950; Aug. 4, 1950], No. 2700/51. Class 97(1) A phase contrast microscope has an objective, means to direct parallel light from an illuminated slit upon an object to be observed, a transparent plate in the path of the light rays from the objective and obliquely intersecting the objective axis where an image of the illuminated slit is formed, the face of the plate towards the objective being covered, except for an area corresponding to the image of the slit, with a thin layer of a substance exhibiting metallic reflection and of a thickness such that a phase difference of 2 exists between rays reflected at the covered and uncovered areas of the plate respectively, and an eyepiece arranged for observation of the image of the object reflected at said plate. The phase contrast microscope shown in Fig. 3 includes a phase plate 1a of transparent material having a reflective coating 2a covering part of one face thereof. Said plate is inclined to the axis of the microscope and the uncovered part 3a thereof has formed thereon by the objective and a lens system 4a an image of an illuminated slit (not shown). Direct light from the object is reflected into an eyepiece 5a by the part 3a and the diffracted light is reflected at 2a. The index and thickness of the layer 2a are arranged to introduce a phase difference of #/2 between the reflected direct and diffracted rays so that the image 22 of the object formed in the focal plane of the eyepiece 5a is in phase contrast. Contrast in image 22 can be varied by inclining the phase plate by Brewster's angle and introducing a polarizer 6a in the light path to the eyepiece, and positive or negative phase contrast may be obtained by introducing a second polarizer 21 into the light path between the object and the phase plate. If the object is opaque, the slit may be disposed in the focal plane of a condenser and the collimated light may be reflected on to the object by a semi-transparent mirror, the light reflected by the object being partly transmitted by this mirror and by an objective so that the slit is imaged on the part 3a of the phase plate. As shown in Fig. 5, the slit 35 may be imaged at the transparent part 3c of phase plate 1c by condenser 34 and light may be collimated by objective 32 before passing to the object. A further form of episcopic illuminator is shown in Fig. 2 and comprises a lamp 7, light from which is condensed at 8 and reflected at 9 so as to form an image of the lamp filament at a diaphragm 10. This image is relayed by a lens 11 which forms a second image of the filament at a variable slit 13 in a diaphragm 12. The light then passes through lenses 14, 15 and a transparent tube 16 with semi-reflecting interface and a further image of the source is formed in the focal plane of the objective 17 whereby a parallel beam is incident on the object 18. Lenses 14, 15 serve to form an image of the diaphragm 19 on the object 18.
Patent GB-265766-A (GB)
Title: Improvements in and relating to slam locks and the like
IPC: E05B21/00
Filed: 1926-01-30
Abstract: 265,766. Vaughan, Ltd., H. & T., and Ramsell, H. G. Jan. 30, 1926. Catches, automatic; hasp locks; stud-and-slot fastenings.-A snap lock comprises a hook-ended projection engaging in a casing and locked by a spring-pressed catch with a partly bevelled head, operated by a key through a pivoted lever. The casing c is formed by bending a sheet metal stamping and contains the lever-mechanism b by which the key rocks the lever c to depress the catch d to release the hook-like member n. When the member n is thrust into the slot o in the lock casing, the bevel q coacts with the bevelled part m of the catch d for automatic engagement. The lever e acts in the unbevelled part g of the catch for release. The catch is pressed upwards by the spring l and its motion is limited by the stop and lug k.
Patent GB-1315279-A (GB)
Title: 4-tertiary-n-aminomethyl-2-methyl-2-4,6,7-trimethoxy-5-benzofuranyl- 1,3-dioxolanes their bromomethylates their process of preparation  and their therapeutic application
IPC: C07D317/28
Filed: 1972-01-20
Abstract: 1315279 2 - (5<SP>1</SP> - Benzofuranyl) - 1,3 - dioxolanes DELALANDE SA 20 Jan 1972 [29 Jan 1971] 2741/72 Heading C2C Novel compounds of Formula I and the bromomethylates thereof wherein R 1  and R 2  are each C 1-4  alkyl or R 1  and R 2  together with the nitrogen atom to which they are attached form a piperidino, pyrrolidino, hexamethyleneimino or morpholine ring are prepared by reaction of a compound of Formula II with a secondary amine R 1 NHR 2  and optionally further reacted with methyl bromide to give the bromomethylate. The starting material of Formula II is prepared by reaction of epibromohydrin with the 5<SP>1</SP>-benzofuranyl methyl ketone. Pharmaceutical compositions in conventional forms for oral or parenteral administration and having hypotensive and peripheral vasodilatory activity comprise an above novel compound and a carrier therefor.
Patent GB-175876-A (GB)
Title: Improvements relating to clutches for power-driven lawn-mowers and the like
IPC: A01D34/47
Filed: 1921-01-21
Abstract: 175,876. Pugh, Ltd., C. H., and Bull, G. F. Jan. 21, 1921. Clutches, friction; operating clutches. - In expanding - band or other clutches for use in motor lawnmowers &c., particularly of the type described in Specificat i o n 180,380, [Class 6 (ii), Gardening &c. appliances], in which power is transmitted to the ground wheels through a lay-shaft, the clutch-operating member is secured to a unitary stirrup which surrounds the clutch and is slidablv mounted on the shaft. In the form described, the driving-member 1 of the clutch is screwed by its boss 2 on the end of the lay-shaft 3, and the driven drum 9, provided with a retaining-ring 25, carries a sprocket 10 for driving a chain-wheel 11, Fig. 2, on the roller shaft. A wedge 6, Figs. 3. and 5, co-operates with the inturned ends 5 of a clutch band 4, and is acted on by a radial slide 8 having a rounded end, which bears on an inclined face 17 of a sleeve 16, three faces being provided for the purpose of adjustment. The sleeve 16 can be slidden axially by a spindle 15 secured by a screw 19 in a U-shaped recess in the stirrup 18, the other end of which slides on the shaft 3 and has a groove 23 to receive an operating-lever 24, which is guided in a fitting 26, Fig. 2, on the handle-bar of the machine.
Patent GB-265583-A (GB)
Title: Improvements relating to precombustion chambers for internal combustion engines
IPC: F02B19/14
Filed: 1927-01-31
Abstract: 265,583. Motorenfabrik Deutz Akt.- Ges. Feb. 3, 1926, [Convention date]. Cylinders receiving liquid fuel.-A preliminary explosion chamber b is secured to the cylinder head by bolts d which bear upon an annular member c forming a cover for a chamber g in which circulates cooling water for a fuel injection nozzle f. The seat e for the nozzle is carried by the chamber b. The member c has an extension h which surrounds the chamber b.
Patent GB-468080-A (GB)
Title: Improvements in headgear, for hygienic purposes, particularly in baldness, deafness and sclerosis
IPC: A42B1/02
Filed: 1936-01-30
Abstract: 468,080. Hats. RYNER, H. Jan. 30, 1936, No. 2806. [Class 63] Hygienic hats are made of porous asbestos cloth covered with heavy artificial silk. The brim may comprise three layers of asbestos cloth cemented together, with a crown of two layers, the edges of which are cemented between the edges of the layers of the brim. Tensile strength may be given by copper wire between the layers. Pads may be situated at the temporal regions. A sweat-band of asbestos cloth may be detachably secured by safety pins. The asbestos is iron-containing. A lining of artificial silk may be provided. In the case of a cap or beret, the artificial silk covering or lining may be dispensed with. Specification 461,294, [Group VI], is referred to.
Patent GB-1530101-A (GB)
Title: Transducer stabilizer
IPC: G11B17/32
Filed: 1977-01-24
Abstract: 1530101 Guiding flexible record media INTERNATIONAL BUSINESS MACHINES CORP 24 Jan 1977 [8 March 1976] 02827/77 Heading G5R In passing, on an air bearing, over a transducer 13, a flexible record medium 25 (e.g. a magnetic disc) first passes over a stabilizing plate 10 having a convex operating surface 14 with its apex located at least as far from its trailing edge as from its leading edge, the transducer 13 being adjacent to the trailing edge. As shown, the stabilizing plate 10 surrounds the transducer 13 in the form of a toroidal ring.
Patent GB-960175-A (GB)
Title: Improvements in the heat-treatment of welded pipes
Inventor: JOHNSON LEONARD TERENCE
IPC: C21D9/50
Filed: 1962-01-25
Abstract: In a process of heat-treating welds formed in the jointing of a pipe to another pipe, a flange, T-connection or other similar component, the treatment being carried out by applying an exothermic composition to the exterior of the pipe in the region of the weld, there is provided within the pipe or pipes and near to the weld area one or more closures which substantially close off the weld area from the open end or ends of the pipe.  The closure plates may be made from metal or heat insulating material such as asbestos board; alternatively they may be formed of granular or fibrous heat-insulating material bonded with a water soluble binder such as gum arabic, in which case they are readily removed by flushing. Specifications 898,232, 913,225, 919,815, 923,014, 924,881, 924,882, 929,999, 941,845 and 947,668 are referred to.
Patent GB-709588-A (GB)
Title: Improvements in or relating to perfluorosebacic acid
IPC: C07C55/32
Filed: 1952-02-04
Abstract: Synthetic resins are made by reacting perfluorosebacic acid, (CF2)8(COOH)2, with glycols, glycerine and other polyhydric alcohols. The esters of the acid react with diamines to form polyamide type polymers.  In an example a fluor-alkyd resin is prepared by heating an equimolecular mixture of the acid and ethylene glycol in a stream of nitrogen.ALSO:The invention comprises a new compound perfluorosebacic acid having the formula (CF2)8.(COOH)2.  It may be prepared by electro-chemically fluorinating sebacic acid by dissolving it in anhydrous liquid hydrogen fluoride and electrolysing it in a nickel-anode cell.  Perfluorosebacyl difluoride (CF2)8(COF)2 is formed with some of the monocarboxylic monofluoride CF3(CF2)7CO and also some liquid fluorocarbons.  The fluorine compounds settle at the bottom of the cell from which they are withdrawn and treated with water.  Hydrolysis takes place resulting in a mixture of perfluorosebacic acid, perfluoropelargonic acid, liquid fluorocarbons and a water phase.  The acids are filtered from the mixture, dried, and may be separated by selective solvent extraction, e.g. by heating the acid mixture in carbon tetrachloride, cooling to crystallise the acid mixture, filtering the mixture off and extracting with hot benzene to remove the perfluoro-pelargonic acid.  The perfluorosebacic acid can be converted to various derivatives, e.g. anhydride, acid halides, amide, nitrile, alkyl esters and salts, which may be hydrolysed to reform the acid.  Diethyl perfluorosebacate is obtained by esterifying the acid with ethyl alcohol.  Perfluorosebacamide is prepared by reacting the ethyl ester with anhydrous ammonia in the presence of ether.  The esters of the acid react with diamines to form polyamide types of polymers.  The acid reacts with polyhydric alcohols to form polyester types of polymers.  Fluoro-alkyd synthetic resins can be made by reacting the acid with glycerine and with glycols.  U.S.A. Specifications 2,519,983, 2,453,147, 2,453,146, 2,438,485, 2,438,484 and 2,426,224 are referred to.
Patent GB-797251-A (GB)
Title: Improvements in and relating to multi-cylinder internal combustion engines
IPC: F02F1/16
Filed: 1957-01-28
Abstract: 797,251. Engine construction. MAYBACHMOTORENBAU GES. Jan. 28, 1957 [Jan. 30, 1956], No. 3025/57. Class 7(2) A multi-cylinder engine is built up of one or more intermediate units, Fig. 2, each comprising cylinder cooling jacket halves 12, 12' cast back to back and a cast crankshaft bearing support 11, and of two end units (not shown) each comprising a cast cylinder cooling jacket half and a cast end crankshaft bearing support, adjacent one of the units being welded directly together at the cylinder cooling jacket joints 19, Fig. 4, while the supports 11 are welded to sheet metal crankcase parts (not shown). The invention is applicable to inline engines, when the cylinder jacket portions of the units may be integral with their bearing support portions or welded thereto. As shown applied to a Veeengine, Fig. 1, welds 14 connect the portions 11 to cylinder jacket portions 12, 12<SP>1</SP> and 13, 13<SP>1</SP> welded together at 17, while inter-cylinder channels are formed by welded-on sheets 20, Fig. 4, and coolant water guides by welded-on sheet metal walls 22.
Patent GB-665877-A (GB)
Title: Improvements in or relating to circuit arrangements embodying cathode ray tubes
Inventor: LUBSZYNSKI HANS GERHARD
IPC: H01J31/38
Filed: 1948-02-03
Abstract: 665,877. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 13, 1949 [Feb. 3, 1948], No. 3072/48. Class 39 (i). The target electrode of a cathode-ray tube comprises a photo-conductive layer and a conductive signal plate and it is scanned by a lowvelocity beam so that the equlibrium potential of the scanned surface corresponds substantially to that of the cathode, the signal plate being maintained at a positive potential relative to said cathode. The target 2 is composed of a layer 3 of glass or mica on one side of which are two layers, one a semi-transparent signal plate 4 and the other a layer 5 of photo-conductive material, e.g. zinc selenide. The electron gun comprises a cathode 6, shield 7, an apertured anode 8 and a metallic wall coating 9. Near to the target is a decelerating electrode 10, the various electrodes being suitably connected to the potentiometer 11, 12. Scanning coils 13 and focusing coils 14 control the beam. The signal plate 4 is connected to an impedance 15 and is maintained a few volts positive with respect to the cathode. When light falls on the layer 5, the area becomes conductive and the potential of the surface of the layer 5 rises, the scanning-beam giving an appropriate signal. The apparatus is suitable for radar and television transmission. Specifications 463,297, 465,060 and 540,034 are referred to. The Provisional Specification states that the photoconductive layer may be replaced by a photovoltaic layer as in Specification 462,550.